1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
11Alexandr11 [23.1K]
3 years ago
8

Why earth is considered a closed system

Biology
1 answer:
nordsb [41]3 years ago
6 0
Https://encrypted-tbn2.gstatic.com/images?q=tbn:ANd9GcQ-UBB8p4jNRbS9Tsp2MvSpy2Ra2Z1ucSmng1KringwaDYa...
You might be interested in
What are the sources of genetic variation during Meiosis?
aniked [119]

Explanation:

Genetic variation is increased by meiosis

Because of recombination and independent assortment in meiosis, each gamete contains a different set of DNA. This produces a unique combination of genes in the resulting zygote. Recombination or crossing over occurs during prophase I

7 0
3 years ago
9. Which structure helps animal cells maintain their shape?
ludmilkaskok [199]

Answer:

<em><u>D. Cytoskeleton</u></em>

Explanation:

It is really none of these answers. The correct answer would be a microtubule which is a component of the cytoskeleton which is in the cytoplasm.

The Cell Walls are only in plant cells so that won't work.  So, A wouldn't work.

Chromosomes are the things that both your parents give you as genes. They have nothing to do with keeping the structure of the cell alright.

Cytoplasm cannot be a answer choice because, the thing is in it but, it doesn't do anything with it. So C wouldn't work either

The correct answer is microtubule however, it is a component of cytoskeleton so therefore, that is your answer.

<em><u>Reference the picture below:</u></em>

4 0
3 years ago
Please help me. I do not understand this. Can you answer and explain to me the steps you did or how you got it? Thanks.
Colt1911 [192]
It wants you to explain why its a chemical change. Signs of chemical changes are formation of gas bubbles, cloudyness, change in color or odor.
4 0
2 years ago
List any organisms that lack tissues
Aleksandr [31]

Answer: Of all the branches of complex animals, sponges are the only group lacking TRUE TISSUE.

Explanation:

6 0
2 years ago
If a pea plant has a ressive allele for green peas, it will produce
insens350 [35]
D. Yellow peas if it does not also have a dominant allele for green peas
5 0
3 years ago
Other questions:
  • Which of the following help causes ozone pollution
    9·1 answer
  • The area of the brain involved in amnesia due to trauma or disease is the
    5·1 answer
  • What materials does dna polymerase require in order to synthesize a complete strand of dna? select all that apply. select all th
    8·1 answer
  • A_is the full set of genetic information than an organism carries in its DNA.​
    11·1 answer
  • 6 points
    13·1 answer
  • What is the charge of the nucleus of an atom?Why?
    5·1 answer
  • Shows its specific trait when both parents pass the gene to the offspring *
    9·1 answer
  • Help please...................
    8·2 answers
  • Please help, no links, complete answers only!!
    12·1 answer
  • In escherichia coli, the c ring of atp synthase is composed of 12 c subunits. For one fully productive revolution of this ring,
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!